Which grain mill?

Hi,

I would like to mill my own wholegrain flour at home but do not know which grain mill works best. Is it better to buy a separate mill - a wooden one from Komo or something like Nutrimill. Or is the grain mill attachement to KitchenAid or Bosch mixer or Champion juicer doing the same job?

It would be great if it would grind also some legume flours, would not be too noisy and would not destroy the nutritional value by overheating.